Synthesis, magnetization, and heat capacity of triangular lattice materials and
Abstract
In this paper we report the synthesis, magnetization, and heat capacity of the frustrated magnets ( ) which contain perfect triangular lattices of . The magnetization data suggests no long-range magnetic order exists in ( ), which is consistent with the heat capacity measurements. Large anisotropy is observed between the magnetization within the plane and along the axis of both compounds. When the magnetic field is applied along the plane, anomalies are observed at 1.8 in at 0.2 T and 2.1 in at 0.18 T. Unlike , a plateaulike field-induced metamagnetic transition is observed for below 1 K in . Two broad peaks are observed in the heat capacity below 10 K indicating possible crystal electric field (CEF) effects and magnetic entropy released under different magnetic fields. All results indicate that are strongly anisotropic, frustrated magnets with field-induced transition at low temperature. The lack of signatures for long-range magnetic order implies that these materials are candidates for hosting a quantum spin liquid ground state.
- Authors:
-
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science & Technology Division
- Univ. of Florida, Gainesville, FL (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science & Technology Division; Univ. of Tennessee, Knoxville, TN (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Chemical Sciences Division
- Publication Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division; USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division
- OSTI Identifier:
- 1761718
- Grant/Contract Number:
- AC05-00OR22725; FG02-86ER45268
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review Materials
- Additional Journal Information:
- Journal Volume: 3; Journal Issue: 11; Journal ID: ISSN 2475-9953
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; frustrated magnetism
Citation Formats
Xing, Jie, Sanjeewa, Liurukara D., Kim, Jungsoo, Meier, William R., May, Andrew F., Zheng, Qiang, Custelcean, Radu, Stewart, G. R., and Sefat, Athena Safa. Synthesis, magnetization, and heat capacity of triangular lattice materials NaErSe2 and KErSe2. United States: N. p., 2019.
Web. doi:10.1103/physrevmaterials.3.114413.
Xing, Jie, Sanjeewa, Liurukara D., Kim, Jungsoo, Meier, William R., May, Andrew F., Zheng, Qiang, Custelcean, Radu, Stewart, G. R., & Sefat, Athena Safa. Synthesis, magnetization, and heat capacity of triangular lattice materials NaErSe2 and KErSe2. United States. https://doi.org/10.1103/physrevmaterials.3.114413
Xing, Jie, Sanjeewa, Liurukara D., Kim, Jungsoo, Meier, William R., May, Andrew F., Zheng, Qiang, Custelcean, Radu, Stewart, G. R., and Sefat, Athena Safa. Tue .
"Synthesis, magnetization, and heat capacity of triangular lattice materials NaErSe2 and KErSe2". United States. https://doi.org/10.1103/physrevmaterials.3.114413. https://www.osti.gov/servlets/purl/1761718.
@article{osti_1761718,
title = {Synthesis, magnetization, and heat capacity of triangular lattice materials NaErSe2 and KErSe2},
author = {Xing, Jie and Sanjeewa, Liurukara D. and Kim, Jungsoo and Meier, William R. and May, Andrew F. and Zheng, Qiang and Custelcean, Radu and Stewart, G. R. and Sefat, Athena Safa},
abstractNote = {In this paper we report the synthesis, magnetization, and heat capacity of the frustrated magnets AErSe2(A=Na,K) which contain perfect triangular lattices of Er3+. The magnetization data suggests no long-range magnetic order exists in AErSe2(A=Na,K), which is consistent with the heat capacity measurements. Large anisotropy is observed between the magnetization within the ab plane and along the c axis of both compounds. When the magnetic field is applied along the ab plane, anomalies are observed at 1.8 μB in NaErSe2 at 0.2 T and 2.1 μB in KErSe2 at 0.18 T. Unlike NaErSe2, a plateaulike field-induced metamagnetic transition is observed for H∥c below 1 K in KErSe2. Two broad peaks are observed in the heat capacity below 10 K indicating possible crystal electric field (CEF) effects and magnetic entropy released under different magnetic fields. All results indicate that AErSe2 are strongly anisotropic, frustrated magnets with field-induced transition at low temperature. The lack of signatures for long-range magnetic order implies that these materials are candidates for hosting a quantum spin liquid ground state.},
doi = {10.1103/physrevmaterials.3.114413},
journal = {Physical Review Materials},
number = 11,
volume = 3,
place = {United States},
year = {Tue Nov 26 00:00:00 EST 2019},
month = {Tue Nov 26 00:00:00 EST 2019}
}
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